Abstract: A method and system for a tone generator assembly are provided. The tone generator assembly includes a resonance chamber that includes a first end and a second end and a body extending therebetween. The body surrounds a cavity therein, wherein the first end includes a resonance chamber opening in flow communication with the cavity. The tone generator assembly also includes a nozzle having a bore therethrough. The bore includes an inlet opening configured to receive a flow of relatively high pressure fluid and an outlet opening coupled in flow communication with the inlet opening and configured to discharge an underexpanded jet of fluid when the flow of relatively high pressure fluid is received at the inlet opening. The resonance chamber and the nozzle are positioned relatively and sized to facilitate emitting a tone from the tone generator assembly having a frequency less than two kilohertz.

Abstract: A pulse detonation cleaner system is described. The cleaner includes an elongated combustion chamber configured with at least one fuel injection inlet and one air inlet to provide fuel to the combustion chamber. The fuel and air are mixed and ignited to produce a flame. The flame is accelerated into a detonation as it propagates downstream through the combustion chamber. The detonation and its products are vented from the combustion chamber into a vessel to be cleaned. The shock and high-pressure products of the detonation are used to release debris from the walls of the vessel and blow them away.